Hello I have a 6 month multiple entry tourist visa, it was granted from 13 January until 13 june. However I arrived in Thailand on 27 Jan. My question : Do I have to extend my visa on the 13th or on the 27th?Of march (after 2 months)?
TLDR : Answer Summary
You should extend your visa based on your date of entry, which is 27 January. Your 60-day stay starts from that date, not the visa grant date. Therefore, you should apply for an extension after 60 days from your entry, around 27 March, rather than on the visa's validity end date of 13 June.